SKF Super-Precision axial-radial roller bearings are bearings designed for high-precision applications with the following key features:

‌High precision and low friction‌: These bearings offer extremely low friction and excellent precision and are suitable for a variety of high-precision applications such as machine tool spindles and other precision equipment

‌High load capacity‌: SKF’s super-precision angular contact ball bearings are designed for high-load applications and feature high load capacity, high stiffness, long service life and low heat generation

‌Wide applications‌: These bearings are widely used in machine tool spindles, metal cutting and woodworking equipment spindles, high-speed rolling mills, printing equipment, precision ball screws, high-speed turbochargers, vacuum pumps, racing cars, marine gyroscopes Stabilizers, micro turbines, machine parts for the semiconductor industry and racing car wheels, etc.

Designs and materials

SKF’s super-precision bearing designs include a variety of types, such as:

Angular contact ball bearings: Available in a variety of designs and materials, including multiple ISO size series, suitable for almost all applications requiring high precision

Cylindrical roller bearings: Single-row and double-row designs for high-load applications such as machine tool spindles

Specific models and application examples

For example, super-precision, high-load-carrying angular contact ball bearings in the 719 and 70 series, these bearings have two contact angles, two ball materials and two ring materials, and can be made into two tolerance grades. They are suitable for heavy loads in applications with limited radial space and are the best choice for demanding applications.

SKF Super-Precision Axial-Radial Roller Bearings are engineered to support combined axial, radial, and moment loads with micron-level precision in high-performance applications. Designed for industries requiring extreme rigidity, accuracy, and load capacity, these bearings excel in machine tool spindles, aerospace systems, robotics, and energy equipment. Their unique design integrates axial and radial load paths into a single compact unit, optimizing space and performance.

Material Technology of SKF Super-Precision Axial-Radial Roller Bearings

Rings & Rollers:

High-carbon chromium steel (AISI 52100): Hardness 60–64 HRC

Hybrid Ceramic Rollers (Si3N4): Non-conductive, 30% lighter, for high-speed applications

Cages:

Machined brass (MB): High-speed stability (DN ≤ 1,000,000)

Polyetheretherketone (PEEK): Heat-resistant up to +250°C

Surface Treatments:

SKF Durotect® Coatings: Corrosion/wear resistance (e.g., DLC, CrN)

Black Oxide Finish: Improved lubricant retention

SKF Super-Precision Axial-Radial Roller Bearings redefine performance in applications demanding extreme accuracy, high loads, and compact design. With advanced hybrid materials, smart sensor integration, and unmatched durability, they are the optimal choice for industries where precision and reliability are non-negotiable.

Ideal For SKF Super-Precision Axial-Radial Roller Bearings:

Precision machining and robotics

Aerospace propulsion and control systems

Renewable energy and medical technology

Heavy industrial automation

Unique Value Proposition:
✅ Multi-directional load support in a single unit
✅ Industry-leading precision for critical applications
✅ Smart monitoring for predictive maintenance